Table 2 Correlation coefficients between the five parameters related to body size and Principal Component Analysis (PCA) factors, eigenvalues and percent variance, described by each PCA factor
Parameter | PCA factor 1 | PCA factor 2 | PCA factor 3 | PCA factor 4 | PCA factor 5 |
|---|---|---|---|---|---|
Body mass | -0.883 | 0.463 | -0.007 | 0.001 | 0.076 |
Body length | -0.981 | 0.103 | 0.004 | -0.084 | -0.140 |
Head length | -0.966 | -0.105 | 0.178 | 0.156 | -0.016 |
Foot length | -0.948 | -0.264 | 0.093 | -0.129 | 0.078 |
Tail length | -0.945 | -0.168 | -0.273 | 0.056 | 0.012 |
Eigenvalue | 4.469 | 0.334 | 0.115 | 0.051 | 0.032 |
Percent variance | 89.37% | 6.67% | 2.30% | 1.03% | 0.63% |